Dynamic Equilibrium Is

Multiple Choice

Dynamic equilibrium is:

A) When an object or body is at rest (i.e. not moving) .
B) When the sum of external forces acting on an object or body is 0 (∑F = 0) .
C) When an object or body is accelerating at differing rates.
D) When an object or body is moving with a constant velocity (i.e. not accelerating) .
E) When an object or body is accelerating at a constant rate.